Texas Instruments has introduced audio codecs and DACs for eBooks, mobile Internet devices and portable navigation devices. The integrated codecs TLV320AIC3100, TLV320AIC3110, TLV320AIC3111, and TLV320AIC3120, and DACs TLV320DAC3101, TLV320DAC3100, and TLV320DAC3120 reduce component count and system cost compared to discrete implementations and support enhanced audio features, says the company. The devices are pin-to-pin and software compatible, reducing hardware and software development to accelerate time-to-market. The devices integrate Class-D speaker amplifiers with up to 2.5W of output power, eliminating the need for multiple resistors and capacitors between the codec and speaker amplifier. The products support analogue and digital microphones. The new devices enable designers to implement enhanced audio features: 3D for compact consumer electronics products; dynamic range compression to automatically adjust the audio to the desired loudness range while protecting the speaker and preventing clipping and distortion; and multiple biquads to equalise the speaker or microphone.
